Just in time for the anniversary of the listing of DINP on California’s Proposition 65 chemical list, the California Office of Environmental Health Hazard Assessment issued a proposed No Significant Risk Level for DINP of 146 µg/day.

If finalized, this will be the level of exposure at which a warning is required for DINP. This will remove one of the significant, and expensive, hurdles to defending against a Proposition 65 claim, as a company will not need to develop an NSRL as part of its case.

From a planning perspective, it also allows manufacturers to assess their products and, if necessary, lower the amount of DINP in the product that may result in an exposure.

The proposed NSRL will now be subject to a public comment period ending February 17, 2015. Final NSRLs for other Proposition 65 chemicals are found in Section 25705 of Title 27 of the California Code of Regulations.